钛合金在超临界水氧化含氯废水介质中腐蚀的研究  

Corrosion of titanic alloy steels in chlorine wastewater solution by supercrical water oxidation

作　　者：马承愚[1] 姜安玺[2] 彭英利[3] 闫波[2] 李芬[2] 石玉明[2] 

机构地区：[1]东华大学环境科学与工程学院,上海200051 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [3]石家庄开发区奇力科技有限公司,河北石家庄050035

出　　处：《云南大学学报（自然科学版）》2006年第S1期274-276,共3页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金资助项目(50178026)

摘　　要：使用超临界水氧化反应中试装置.研究了钛合金(纯钛和铸钛)在超临界水氧化条件下(温度为400~600℃、压力为28~32 MPa)分解含氯废水时的腐蚀.经过30 d的试验,用金相光学显微镜和扫描电子显微镜观测腐蚀的形貌,结果表明,2种金属在含氯水溶液超临界水氧化条件下试验均存在腐蚀,用称重法对腐蚀速率进行了测试,其中.纯钛腐蚀速率为0.014 g/(m2.h)或0.43 mm/a.铸钛金属腐蚀速率为0.015 g/(m2.h)或0.45 mm/a.同时对其材质的腐蚀机理进行了揭示.Titanic alloy steels were tested by supercritical water oxidation(temperature is from 400?℃ to 600?℃,pressure is from 28?MPa to 32?MPa) to the chlorine wastewater solution conditions in pilot-plant-scale experimental facility for 30 days.Results showed that two stainless steels exhibited general corrosion by optical microscope and SEM.The corrosion rates of pure titanic is 0.014?g/(m^2·h) or 0.43?mm/a,one of casting titanic is 0.015?g/(m^2·h) or 0.45??mm/a.And the mechanisms of the corrosion were opened out...

关 键 词：超临界水氧化 腐蚀 含氯废水 钛合金 

分 类 号：X703[环境科学与工程—环境工程]